Validation of experimental results for graphene oxide‐epoxy polymer nanocomposite through computational analysis

2020 ◽  
Vol 59 (1) ◽  
pp. 84-99
Author(s):  
Abhishek K. Pathak ◽  
Sanjay R. Dhakate
Keyword(s):  
Graphene Oxide ◽  
Computational Analysis ◽  
Epoxy Polymer ◽  
Polymer Nanocomposite ◽  
Experimental Results

Structural and vibrational study of graphene oxide via coronene based models: theoretical and experimental results

2016 ◽  
Vol 3 (5) ◽  
pp. 055020 ◽  
Author(s):  
João Paulo Almeida de Mendonça ◽  
Alessandro Henrique de Lima ◽  
Georgia Maria Amaral Junqueira ◽  
Welber Gianini Quirino ◽  
Cristiano Legnani ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Experimental Results ◽  
Vibrational Study

Efficiency of Bio-Sourced Composites in Confining Recycled Aggregates Concrete

2022 ◽  
Author(s):  
Elhem Ghorbel ◽  
Mariem Limaiem
Keyword(s):  
Mechanical Behavior ◽  
Analytical Modeling ◽  
Mechanical Characteristics ◽  
Epoxy Polymer ◽  
Experimental Results ◽  
Confined Concrete ◽  
Recycled Aggregates ◽  
Demolition Waste ◽  
Traditional System ◽  
Flax Fibers

This research investigates the efficiency of using Flax Fibers reinforced bio-sourced polymer by comparison to traditional system based on Carbone Fiber Reinforced Epoxy Polymer in order to confine recycled aggregates concrete. Four concrete formulations have been formulated by incorporating recycled aggregates from demolition waste (0%, 30%, 50% and 100%). An air-entraining agent was added to the formulations to achieve the level of 4% occluded air. The main objective is to discuss and to evaluate the effectiveness of confining them using bio-sourced composite by comparison to traditional ones. To hit this target, the developed approaches are both experimental and analytical. The first part is experimental and aimed to characterize the mechanical behavior of the materials: the composites used in the confining process the unconfined concrete (effect of incorporating recycled aggregates on the overall mechanical characteristics). We establish that bio-sourced composites are efficient in strengthening recycled aggregates concrete especially if they are air-entrained. The second part of this work is dedicated to analytical modeling of mechanical behavior of confined concrete with composite under compression based on Mander’s model. The input parameters of the model were modified to consider the rate of recycled aggregates incorporation. Comparison between experimental results and the modified Mandel’s Model is satisfactory.

Potentiometric Taste Sensing Using Reduced Graphene Oxide Screen Printed Electrodes

2020 ◽  
Vol 18 (12) ◽  
pp. 881-888
Author(s):  
Anil B. Patil ◽  
Umesh. J. Tupe ◽  
Vikas V. Deshmane ◽  
Arun V. Patil
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Principal Component ◽  
Experimental Results ◽  
Statistical Tool ◽  
Sensing Applications ◽  
Screen Printed Electrodes ◽  
Reduced Graphene ◽  
Pharmaceutical Industries ◽  
Screen Printed

This paper reports the development of simple and economical reduced graphene oxide (rGO) based screen-printed electrodes (SPE) for five basic taste sensing applications. Twenty different test solutions for the five tastes of salty, sour, sweet, umami, and bitter at 1 ppm, 10 ppm, 100 ppm, 1000 ppm concentration levels were tested with the fabricated SPEs. From experimental results, electrical signals generated between the electrode and test solution interface were measured using the potentiometric method. Satisfactory potentiometric responses of SPEs to different ppm concentrations for each sample were used to analyze the sample data. Histogram using the statistical tool was used to analyze the changes in the conductivity response. A multivariate Principal Component Analysis (PCA) statistical tool correlated using loading plots between variables and factors of all the five basic tastes. The plot showed the interrelation between variables and test samples. The obtained experimental results from these rGO based SPEs make them suitable for their use in taste sensing applications such as for any taste disorder disability, food-producing industry, pharmaceutical industries, etc.

scholarly journals Synthesis of diamine functionalised graphene oxide and its application in the fabrication of electrically conducting reduced graphene oxide/polymer nanocomposite films

2020 ◽  
Vol 2 (10) ◽  
pp. 4702-4712
Author(s):  
Namrata Maslekar ◽  
Rabiatul A. Mat Noor ◽  
Rhiannon P. Kuchel ◽  
Yin Yao ◽  
Per B. Zetterlund ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrical Properties ◽  
Reduced Graphene Oxide ◽  
Polymer Nanocomposite ◽  
Nanocomposite Films ◽  
Electrically Conducting ◽  
Free Amine ◽  
Reduced Graphene ◽  
Amine Groups

The study focussed on synthesis of colloidally stable diamine functionalised graphene oxide (GO) with dangling free amine groups, and exhibited physicochemical and electrical properties of these functionalised sheets in a polymer-based nanocomposite.

Biodegradation of graphene oxide-polymer nanocomposite films in wastewater

2017 ◽  
Vol 4 (9) ◽  
pp. 1808-1816 ◽  
Author(s):  
Jingjing Fan ◽  
Carlos David Grande ◽  
Debora F. Rodrigues
Keyword(s):  
Graphene Oxide ◽  
Polymer Nanocomposite ◽  
Nanocomposite Films

The polymer present in the nanocomposite is degraded by microorganisms present in the wastewater.

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